Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N47343 - Boeing 737MAX 8 - United Airlines UAL1580/UA1580 (MSY-ORD-YVR) - 4.1 mi away @ 35975 ft, heading NNE at 494 mph. Spotted 2x before! [03:49:30 PM CDT] #A5CF3F #N47343 #B38M #UNITED #UAL1580 #UA1580 #ADSB #ADSBbot

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N77536 - Boeing 737NG 824/W - United Airlines UAL1580/UA1580 (MSY-ORD-YVR) - 5.0 mi away @ 38000 ft, heading NNE at 512 mph. Spotted 9x before! [03:36:40 PM CDT] #AA7E7A #N77536 #B738 #UNITED #UAL1580 #UA1580 #ADSB #ADSBbot

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N16234 - Boeing 737NG 824/W - United Airlines UAL1580/UA1580 (MSY-ORD-YVR) - 4.7 mi away @ 39000 ft, heading NNE at 538 mph. Spotted 12x before! [03:30:53 PM CDT] #A0FBFA #N16234 #B738 #UNITED #UAL1580 #UA1580 #ADSB #ADSBbot

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N15710 - Boeing 737NG 724/W - United Airlines UAL1580/UA1580 (MYR-ORD-YVR) - 5.0 mi away @ 42350 ft, heading NNE at 539 mph. Spotted 23x before! [05:35:15 PM CDT] #A0E6C4 #N15710 #B737 #UNITED #UAL1580 #UA1580 #ADSB #ADSBbot